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Versions: 16
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Contents
module FLV
# FLV files consists of a single header and a collection of Tags.
# Tags all have a timestamp and a body; this body can be Audio, Video, or Event.
class Tag
include Base
attr_accessor :body, :timestamp
def timestamp=(t)
@timestamp = Timestamp.try_convert(t)
end
def initialize(timestamp = 0, body = nil)
self.body = body.instance_of?(Hash) ? Event.new(:onMetaData, body) : body
self.timestamp = timestamp
end
CLASS_CODE = {
8 => Audio,
9 => Video,
18 => Event
}.freeze
def write_packed(io, *) #:nodoc
packed_body = @body.pack
len = io.pos_change do
io << [CLASS_CODE.key(self.body.class), :char] \
<< [packed_body.length, :unsigned_24bits] \
<< [@timestamp.in_milliseconds, :unsigned_24bits] \
<< [@timestamp.in_milliseconds >>24, :char] \
<< [streamid=0, :unsigned_24bits] \
<< packed_body
end
io << [len, :unsigned_long]
end
def read_packed(io, options) #:nodoc
len = io.pos_change do
code, body_len, timestamp_in_ms, timestamp_in_ms_ext, streamid =
io >>:char >>:unsigned_24bits >>:unsigned_24bits >>:char >>:unsigned_24bits
@timestamp = Timestamp.in_milliseconds(timestamp_in_ms + (timestamp_in_ms_ext << 24))
@body = io.read CLASS_CODE[code] || Body, :bytes => body_len
end
FLV::Util.double_check :size, len, io.read(:unsigned_long) #todo
end
def debug(format, compared_with = nil) #:nodoc
format.header("#{timestamp} ", @body.title)
@body.debug(format) unless compared_with && @body.similar_to?(compared_with.body)
end
def is?(what) #:nodoc
super || body.is?(what)
end
def method_missing(*arg, &block)
super
rescue NoMethodError
body.send(*arg, &block)
end
end
end
Version data entries
16 entries across 16 versions & 2 rubygems